Por favor, use este identificador para citar o enlazar este Item:http://hdl.handle.net/20.500.12105/18862
Título
TGFβ inhibition restores a regenerative response in acute liver injury by suppressing paracrine senescence.
Autor(es)
Bird, Thomas G | Müller, Miryam | Boulter, Luke | Vincent, David F | Ridgway, Rachel A | Lopez-Guadamillas, Elena | Lu, Wei-Yu | Jamieson, Thomas | Govaere, Olivier | Campbell, Andrew D | Ferreira-Gonzalez, Sofía | Cole, Alicia M | Hay, Trevor | Simpson, Kenneth J | Clark, William | Hedley, Ann | Clarke, Mairi | Gentaz, Pauline | Nixon, Colin | Bryce, Steven | Kiourtis, Christos | Sprangers, Joep | Nibbs, Robert J B | Van Rooijen, Nico | Bartholin, Laurent | McGreal, Steven R | Apte, Udayan | Barry, Simon T | Iredale, John P | Clarke, Alan R | Serrano, Manuel | Roskams, Tania A | Sansom, Owen J | Forbes, Stuart J
Fecha de publicación
2018-08-15
Cita
Sci Transl Med. 2018;10(454):eaan1230.
Idioma
Inglés
Tipo de documento
journal article
Resumen
Liver injury results in rapid regeneration through hepatocyte proliferation and hypertrophy. However, after acute severe injury, such as acetaminophen poisoning, effective regeneration may fail. We investigated how senescence may underlie this regenerative failure. In human acute liver disease, and murine models, p21-dependent hepatocellular senescence was proportionate to disease severity and was associated with impaired regeneration. In an acetaminophen injury mouse model, a transcriptional signature associated with the induction of paracrine senescence was observed within 24 hours and was followed by one of impaired proliferation. In mouse genetic models of hepatocyte injury and senescence, we observed transmission of senescence to local uninjured hepatocytes. Spread of senescence depended on macrophage-derived transforming growth factor-β1 (TGFβ1) ligand. In acetaminophen poisoning, inhibition of TGFβ receptor 1 (TGFβR1) improved mouse survival. TGFβR1 inhibition reduced senescence and enhanced liver regeneration even when delivered beyond the therapeutic window for treating acetaminophen poisoning. This mechanism, in which injury-induced senescence impairs liver regeneration, is an attractive therapeutic target for developing treatments for acute liver failure.
MESH
Cellular Senescence | Liver Regeneration | Paracrine Communication | Animals | Cyclin-Dependent Kinase Inhibitor p21 | Disease Models, Animal | Hepatocytes | Humans | Liver | Macrophages | Male | Mice, Inbred C57BL | Necrosis | Signal Transduction | Transforming Growth Factor beta
Versión en línea
DOI
Aparece en las colecciones